Image forming apparatus

Details Image forming apparatus Image forming apparatus

1987-08-07

1988-11-22

Prescott, A. C.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 355 14R, 118663, 118688, 222350, G03G 1508

Patent

active

047869429

ABSTRACT:
An electrostatic latent image formed on a surface of a photoconductor drum 61 of a copying apparatus is caused to be visible by a developing device 4. The developing device 4 comprises a toner tank 43 and a toner supply roller 44 for supplying toner to a developer container 45. A toner density in the developer container 45 is detected by a sensor 11 and a detecting circuit 1. When irregular supply of toner is requested through a switch 91, a control circuit 2 compares the detected toner density with a prescribed density and drives the roller 44 to supply toner till the detected density attains the prescribed density. If copy operation is instructed through a switch 92 during the supply of toner, the control circuit 2 permits the copy operation and the supply of toner is continued during the copy operation.

REFERENCES:
patent: 4277003 (1981-07-01), Tabuchi et al.
patent: 4416535 (1983-11-01), Tottori
patent: 4536080 (1985-08-01), Hauser et al.
patent: 4550998 (1985-11-01), Nishikawa

Affiliated with

Also associated with

Rating

Image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-438117